Which of the following measures can lead to an increase in exports?

Out of the given options, the measure that can lead to an increase in exports is the depreciation of currency. When a country's currency depreciates, its exports become relatively cheaper for foreign buyers. This makes the country's exports more competitive and attractive in the global market, which can increase demand and ultimately increase the country's export revenue. On the other hand, an increase in export duties may discourage exports because it makes exported goods more expensive for foreign buyers. Similarly, an increase in excise duties is a tax on domestically produced goods, which would make them more expensive and less competitive in the global market. A total ban on imports may protect domestic industries from foreign competition, but it can also limit the availability of raw materials and other inputs needed for production. This can increase production costs and reduce the competitiveness of the country's exports.